Scraper base



FIG. 1 is an elevated perspective view of the scraper base showing my new design;

FIG. 2 is an end view of the scraper base of FIG. 1;

FIG. 3 is a side view of the scraper base of FIG. 1, the other side being a mirror image thereof; and,

FIG. 4 is a bottom view of the scraper base of FIG. 1. 

The ornamental design for a scraper base, as shown and described. 